Control n = 38 | Intervention n = 50 | Mean improvement comparison between groupsa | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pre-test | Post-test | Mean diff. | 95% CI | p | Pre-test | Post-test | Mean diff. | 95% CI | p | p | gHedges | |||
Lower | Upper | Lower | Upper | |||||||||||
Knowledge (Mean (SD)) | 11.8 (3.9) | 14.0 (4.1) | 2.2 (3.5) | 1.0 | 3.3 | 0.001 | 13.2 (4.1) | 17.6 (3.6) | 4.4 (3.8) | 3.3 | 5.5 | < 0.001 | < 0.01 | 0.6 |
Self-efficacy (Mean (SD)) | 29.1 (3.8) | 30.3 (3.5) | 1.2 (4.0) | −0.1 | 2.5 | 0.08 | 28.2 (4.6) | 28.9 (3.9) | 0.7 (3.8) | −0.4 | 1.8 | 0.2 | 0.6 | 0.1 |